Science

Friday, 21 November 2025
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Enceladus
The surface temperature of the moon is 75 K.
Earth
Although it's hard to believe, the Earth's crust consists of 47 percent oxygen.
It is trapped in the soil in the form of various oxides, the most common of which are: silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, and iron oxide.
Cosmos
The Solar System is located in the Milky Way.
Our galaxy ranks rather average, its diameter is 100 to 120 thousand light years. Perhaps a unique f ...
NASA
NASA officially opened on October 1st, 1958.
Nicotine
Nicotine is a strong neurotoxin - it affects the nervous system.
It affects the nervous system, causing pleasant experiences that can be compared to the effects of t ...
Fungi
Mushrooms are of great importance in the development of civilization, due to their key role in the production of bread and wine.
Many species of mushrooms are used in food production: bread, alcohol, and cheese. Some of them, suc ...
Amber
Amber comes in various shapes and a wide range of shades.
Shapes resemble raindrops, rods, or lenses, and vary in shades of yellow, red, orange, brown, and even white opaque. Approximately 300 colors have been cataloged up to this day.
Moon
The Moon has a residual atmosphere whose pressure is 3×10-15 bar.
Its entire atmosphere weighs only 10 tons.
Enceladus
Enceladus' atmosphere consists of water vapor (91%), nitrogen (4%), carbon dioxide (3.2%) and methane (1.7%).
Graphene
Already in the 19th century, scientists speculated that graphite was composed of layers.
This was only proven through research at the beginning of the 20th century, In 1947, the first theor ...